Narasagoudr Shivayogi S, Hegde Veena G, Chougale Ravindra B, Masti Saraswati P, Dixit Shruti
Department of Chemistry, Karnatak Science College, Dharwad 580 001, Karnataka, India.
Post-Graduate Department of Chemistry, Karnatak University, Dharwad 580 003, Karnataka, India.
Int J Biol Macromol. 2020 Jul 1;154:48-61. doi: 10.1016/j.ijbiomac.2020.03.073. Epub 2020 Mar 12.
Present work aimed to develop active packaging films based on chitosan (CS), poly (vinyl alcohol) (PVA) and boswellic acid (BA), and to evaluate the effect of BA on multifunctional properties of CS/PVA (CPBA) active films. Different compositions of active packaging films were prepared by the solvent casting method. The results indicated that incorporation of BA enhanced the ultraviolet blocking, morphology, mechanical properties, water solubility and hydrophilicity of the CPBA active films. Significant improvement in the barriers properties of BA incorporated CPBA active films were observed. The microbiological screening has demonstrated the antimicrobial activity of the films against Escherichia coli, Staphylococcus aureus and Candida albicans. Furthermore, the prepared active films do not deteriorate the thermal properties after incorporation of BA. The overall migration values of the CPBA active films in contact with food simulants were within the permitted limits. The obtained results indicate that the CPBA active film may be a promising material for food packaging applications.
目前的工作旨在开发基于壳聚糖（CS）、聚乙烯醇（PVA）和乳香酸（BA）的活性包装薄膜，并评估BA对CS/PVA（CPBA）活性薄膜多功能性能的影响。通过溶液浇铸法制备了不同组成的活性包装薄膜。结果表明，BA的加入增强了CPBA活性薄膜的紫外线阻隔性能、形态、机械性能、水溶性和亲水性。观察到加入BA的CPBA活性薄膜的阻隔性能有显著改善。微生物筛选表明该薄膜对大肠杆菌、金黄色葡萄球菌和白色念珠菌具有抗菌活性。此外，制备的活性薄膜在加入BA后不会降低热性能。CPBA活性薄膜与食品模拟物接触时的总迁移值在允许范围内。所得结果表明，CPBA活性薄膜可能是一种有前途的食品包装应用材料。
